builtin/bundle.c

   1 #include "builtin.h"
   2 #include "cache.h"
   3 #include "bundle.h"
   4
   5 /*
   6  * Basic handler for bundle files to connect repositories via sneakernet.
   7  * Invocation must include action.
   8  * This function can create a bundle or provide information on an existing
   9  * bundle supporting "fetch", "pull", and "ls-remote".
  10  */
  11
  12 static const char builtin_bundle_usage[] =
  13   "git bundle create <file> <git-rev-list args>\n"
  14   "   or: git bundle verify <file>\n"
  15   "   or: git bundle list-heads <file> [<refname>...]\n"
  16   "   or: git bundle unbundle <file> [<refname>...]";
  17
  18 int cmd_bundle(int argc, const char **argv, const char *prefix)
  19 {
  20         struct bundle_header header;
  21         const char *cmd, *bundle_file;
  22         int bundle_fd = -1;
  23
  24         if (argc < 3)
  25                 usage(builtin_bundle_usage);
  26
  27         cmd = argv[1];
  28         bundle_file = prefix_filename(prefix, argv[2]);
  29         argc -= 2;
  30         argv += 2;
  31
  32         memset(&header, 0, sizeof(header));
  33         if (strcmp(cmd, "create") && (bundle_fd =
  34                                 read_bundle_header(bundle_file, &header)) < 0)
  35                 return 1;
  36
  37         if (!strcmp(cmd, "verify")) {
  38                 close(bundle_fd);
  39                 if (argc != 1) {
  40                         usage(builtin_bundle_usage);
  41                         return 1;
  42                 }
  43                 if (verify_bundle(&header, 1))
  44                         return 1;
  45                 fprintf(stderr, _("%s is okay\n"), bundle_file);
  46                 return 0;
  47         }
  48         if (!strcmp(cmd, "list-heads")) {
  49                 close(bundle_fd);
  50                 return !!list_bundle_refs(&header, argc, argv);
  51         }
  52         if (!strcmp(cmd, "create")) {
  53                 if (argc < 2) {
  54                         usage(builtin_bundle_usage);
  55                         return 1;
  56                 }
  57                 if (!startup_info->have_repository)
  58                         die(_("Need a repository to create a bundle."));
  59                 return !!create_bundle(&header, bundle_file, argc, argv);
  60         } else if (!strcmp(cmd, "unbundle")) {
  61                 if (!startup_info->have_repository)
  62                         die(_("Need a repository to unbundle."));
  63                 return !!unbundle(&header, bundle_fd, 0) ||
  64                         list_bundle_refs(&header, argc, argv);
  65         } else
  66                 usage(builtin_bundle_usage);
  67 }